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baherus [9]
3 years ago
14

What's the chemical formula for salt, like is it NaCl?? the salt we eat???????​

Chemistry
2 answers:
GenaCL600 [577]3 years ago
7 0

Answer:

Yes

Explanation:

NaCl is table salt

Also known as sodium chloride

MA_775_DIABLO [31]3 years ago
3 0

yeah it's NaCl, I just looked it up

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When do some atoms in covalent bonds become slightly negative or slightly positive
s2008m [1.1K]

Answer:

A covalent bond is the force of attraction that holds together two atoms that share a pair of electrons. It forms between atoms of the same or different nonmetals. In polar covalent bonds, one atom attracts the shared electrons more strongly and becomes slightly negative. The other atom becomes slightly positive

Explanation:

hope this helps

6 0
3 years ago
When hydrogen gas reacts with oxygen gas under certain conditions to produce liquid water, 572.0 kJ of heat energy is released.
frozen [14]

Answer : This reaction is an exothermic reaction.

Explanation :

Endothermic reaction : It is defined as the chemical reaction in which the energy is absorbed from the surrounding.

In the endothermic reaction, the energy of reactant are less than the energy of product.

Exothermic reaction : It is defined as the chemical reaction in which the energy is released into the surrounding.

In the exothermic reaction, the energy of reactant are more than the energy of product.

Enthalpy of reaction : It is the difference between the energy of product and the reactant. It is represented as \Delta H.

The balanced chemical reaction will be:

H_2(g)+O_2(g)\rightarrow H_2O(l)+572.0kJ

From the reaction we conclude that the heat energy is released during the reaction that means this reaction is an exothermic reaction.

Hence, the reaction is an exothermic reaction.

7 0
4 years ago
X: glucose + oxygen ---- carbon dioxide + water
elena-s [515]

Answer:

X

Explanation:

5 0
2 years ago
Read 2 more answers
A sample of an alloy of aluminum contains 0.0898 mol Al and 0.0381 mol Mg. What are the mass percentages of Al and Mg in the all
blondinia [14]

Answer:

Al 72.61%

Mg 27.39%

Explanation:

To obtain the mass percentages, we need to place the individual masses over the total mass and multiply by 100%.

If we observe clearly, we can see that the parameters given are the moles. We need to convert the moles to mass.

To do this ,we need to multiply the moles by the atomic masses. The atomic mass of aluminum is 27 while that of magnesium is 24.

Now, the mass of aluminum is thus = 27 * 0.0898 = 2.4246g

The mass of magnesium is 0.0381 * 24 = 0.9144g

We can now calculate the mass percentage.

The total mass is 0.9144 + 2.4246 = 3.339g

% mass of Al = 2.4246/3.339 * 100 = 72.61%

% mass of Mg = 0.9144/3.39 * 100 = 27.39%

7 0
3 years ago
Read 2 more answers
Can you please tell me the steps to figure how the answers to number 2?
Evgesh-ka [11]

Answer:

its a trick yo have to add it all

Explanation:

7 0
3 years ago
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